1. TRIG question

Hi all,

i was struggling to solve this equation, and would appreciate any help u guyz could offer.

cos(400/p)=1-(143/p)

there arent any trig identities that i can use, that weve learnt. its really annoying me.

thanks.

2. Originally Posted by Paula
Hi all,

i was struggling to solve this equation, and would appreciate any help u guyz could offer.

cos(400/p)=1-(143/p)

there arent any trig identities that i can use, that weve learnt. its really annoying me.

thanks.
As it stands there is no solution. See the graph below. (Even if there was a solution there is no way to solve this equation exactly.)

-Dan

3. ok, thanks dan

i think i'll have a word with my lecturer. she states a answer of 554, which when subtituted in gives doesnt work,